The Experts below are selected from a list of 219 Experts worldwide ranked by ideXlab platform

K. Wu - One of the best experts on this subject based on the ideXlab platform.

  • Exception Resolution Service for RBAC systems
    2007 11th International Conference on Computer Supported Cooperative Work in Design, 2007
    Co-Authors: K. Wu
    Abstract:

    We propose an exception resolution Service for a role based access control (RBAC) system as a Supplementary Service, that will increase the flexibility of RBAC systems. Our model will keep the security policies based on a RBAC system while some not role based administrations are possible. In other words, the not role based access permission is not independent from the RBAC system. The related definitions and functions are given. An implementation example shows that the Service is useful and efficient in practice.

  • CSCWD - Exception Resolution Service for RBAC systems
    2007 11th International Conference on Computer Supported Cooperative Work in Design, 2007
    Co-Authors: K. Wu
    Abstract:

    We propose an exception resolution Service for a role based access control (RBAC) system as a Supplementary Service, that will increase the flexibility of RBAC systems. Our model will keep the security policies based on a RBAC system while some not role based administrations are possible. In other words, the not role based access permission is not independent from the RBAC system. The related definitions and functions are given. An implementation example shows that the Service is useful and efficient in practice.

Weiming Wang - One of the best experts on this subject based on the ideXlab platform.

M. Žuvanić - One of the best experts on this subject based on the ideXlab platform.

  • Mobile network protection system against fraudulent and unwanted messaging traffic
    2012 Proceedings of the 35th International Convention MIPRO, 2012
    Co-Authors: T. Gojević, K. Matas, M. Skomeršić, M. Žuvanić
    Abstract:

    In this paper, mobile network protection system against fraudulent and unwanted messaging traffic is discussed. Application to Person (A2P) messaging traffic is raising every year and with that raise fraudulent and unwanted traffic is gaining momentum as well. Home Location Register (HLR) lookup, Short Message Service (SMS) and Unstructured Supplementary Service Data (USSD) is exchanged between mobile network operators and along with regular traffic, there are also cases of traffic affecting network performance, link utilization and subscriber satisfaction. This paper will, discuss technical, commercial and security challenges of the aforementioned messaging traffic and how mobile network protection system can help to solve them.

  • MIPRO - Mobile network protection system against fraudulent and unwanted messaging traffic
    2012
    Co-Authors: T. Gojević, K. Matas, M. Skomeršić, M. Žuvanić
    Abstract:

    In this paper, mobile network protection system against fraudulent and unwanted messaging traffic is discussed. Application to Person (A2P) messaging traffic is raising every year and with that raise fraudulent and unwanted traffic is gaining momentum as well. Home Location Register (HLR) lookup, Short Message Service (SMS) and Unstructured Supplementary Service Data (USSD) is exchanged between mobile network operators and along with regular traffic, there are also cases of traffic affecting network performance, link utilization and subscriber satisfaction. This paper will, discuss technical, commercial and security challenges of the aforementioned messaging traffic and how mobile network protection system can help to solve them.

Zhelong Wang - One of the best experts on this subject based on the ideXlab platform.

Aruna Seneviratne - One of the best experts on this subject based on the ideXlab platform.

  • A Delay-Tolerant Payment Scheme Based on the Ethereum Blockchain
    IEEE Access, 2019
    Co-Authors: Yining Hu, Ahsan Manzoor, Parinya Ekparinya, Madhusanka Liyanage, Kanchana Thilakarathna, Guillaume Jourjon, Aruna Seneviratne
    Abstract:

    Digital banking as an essential Service can be hard to access in remote, rural regions where the network connectivity is unavailable or intermittent. The payment operators like Visa and Mastercard often face difficulties reaching these remote, rural areas. Although micro-banking has been made possible by short message Service or unstructured Supplementary Service data messages in some places, their security flaws and session-based nature prevent them from wider adoption. Global-level cryptocurrencies enable low-cost, secure, and pervasive money transferring among distributed peers, but are still limited in their ability to reach people in remote communities. We propose a blockchain-based digital payment scheme that can deliver reliable Services on top of unreliable networks in remote regions. We focus on a scenario where a community-run base station provides reliable local network connectivity while intermittently connects to the broader Internet. We take advantage of the distributed verification guarantees of the Blockchain technology for financial transaction verification and leverage smart contracts for secure Service management. In the proposed system, payment operators deploy multiple proxy nodes that are intermittently connected to the remote communities where the local blockchain networks, such as Ethereum are composed of miners, vendors, and regular users. Through probabilistic modeling, we devise design parameters for the blockchain network to realize robust operation over the top of the unreliable network. Furthermore, we show that the transaction processing time will not be significantly impacted due to the network unreliability through extensive emulations on a private Ethereum network. Finally, we demonstrate the practical feasibility of the proposed system by developing Near Field Communication (NFC)-enabled payment gateways on Raspberry-Pis, a mobile wallet application and mining nodes on off-the-shelf computers.